Display rack



FIG. 1 is a side elevational view of a display rack showing my new design;

FIG. 2 is a perspective view of the display rack of FIG. 1; and,

FIG. 3 is an enlarged exploded perspective view of a portion of the display rack of FIG. 1, shown separately for the convenience of illustration.

The broken lines shown are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a display rack, as shown and described. 